Senior Java Developer (Distributed Financial Systems) 80 - 100% (f/m/d) - (Contract through our external payroll partner with immediate start for 12 months with possible extension)

Responsibilities

• Design and evolve robust distributed systems, balancing scalability, latency, consistency, and fault tolerance
• Apply distributed systems principles (e.g. consistency models, idempotency, back-pressure, resiliency patterns) to real‑world financial workloads
• Develop and maintain high‑performance backend services and APIs using Java, Spring, and Spring Boot
• Optimise end‑to‑end latency, asynchronous processing, and efficient IO
• Identify and resolve performance bottlenecks through profiling, benchmarking, and load testing
• Integrate complex financial platforms and third‑party services, ensuring correctness, data integrity, and operational resilience
• Design reliable messaging and integration flows using JPA, JDBC templates, JMS, and event‑driven patterns
• Write clean, maintainable, and efficient code while adhering to industry best practices, including code reviews, testing, and CI/CD
• Apply financial‑grade engineering principles (auditability, security, controlled change)
• Collaborate with product managers, designers, and other stakeholders to gather requirements and translate them into technical specifications and deliverables

Requirements

• Languages & Platforms: Java (Core Java, Collections, JSON, JDBC), Spring Framework, Spring Boot
• Architecture: Distributed systems, microservices, event‑driven design, low‑latency systems
• Databases & Messaging: JPA, JDBC, relational databases, JMS
• Operating Systems: Unix/Linux, bash scripting
• Security: OAuth2, API security, IAM concepts
• Strong code review practices and pride in code quality
• Experience with cloud platforms, preferably Microsoft Azure
• Knowledge of microservices architecture and containerisation (e.g., Docker, Kubernetes)
• Familiarity with CI/CD pipelines and DevOps practices
• Willingness to collaborate in a global team with members in Zurich and Singapore
• Strong ownership mindset with focus on business impact and reliability
• Analytical problem‑solver with a performance‑ and quality‑driven approach
• Team player with an agile mindset

Nice to have

• Previous experience in the financial industry is a plus

How to apply

Documents to submit:

• full job application